EP 2796701 A1 20141029 - FAULT DETECTION METHOD
Title (en)
FAULT DETECTION METHOD
Title (de)
FEHLERERKENNUNGSVERFAHREN
Title (fr)
PROCÉDÉ DE DÉTECTION DE DÉFAUT
Publication
Application
Priority
- JP 2011281078 A 20111222
- JP 2012008095 W 20121219
Abstract (en)
With a precondition that a cooling water temperature sensor 16 and an intercooler exit gas temperature sensor 18 have been determined normal, whether an EGR cooler efficiency calculated is within a normal range is determined. When within the normal range, whether there is divergence between a calculation value of an intake temperature to be detected by an intake manifold gas temperature sensor 19 and an actual detection value of the sensor 19 is determined. When not in the normal range, whether the calculation value is excessively low is determined; and, just like the above, whether there is divergence between the calculation value and the actuation detection value of the intake manifold gas temperature sensor 19 is determined. Based on the determinations categorized, whether the EGR cooler 14, EGR gas temperature sensor 17 and intake manifold gas temperature sensor 19 are normal is determined.
IPC 8 full level
F02M 25/07 (2006.01); F02D 41/22 (2006.01)
CPC (source: EP US)
F02D 41/222 (2013.01 - EP US); F02M 26/49 (2016.02 - EP US); G01K 15/007 (2013.01 - US); G01M 99/002 (2013.01 - US); F02D 2200/021 (2013.01 - EP US); F02D 2200/0414 (2013.01 - EP US); F02D 2400/08 (2013.01 - EP US); F02M 26/05 (2016.02 - EP US); F02M 26/28 (2016.02 - EP US); F02M 26/47 (2016.02 - EP US); Y02T 10/40 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2796701 A1 20141029; EP 2796701 A4 20151216; CN 104040159 A 20140910; CN 104040159 B 20160608; JP 2013130145 A 20130704; JP 5883289 B2 20160309; US 2014321499 A1 20141030; US 9534968 B2 20170103; WO 2013094188 A1 20130627
DOCDB simple family (application)
EP 12860578 A 20121219; CN 201280063520 A 20121219; JP 2011281078 A 20111222; JP 2012008095 W 20121219; US 201214356727 A 20121219